task.h

/*
 *  Copyright (C) 2004-2021 Edward F. Valeev
 *
 *  This file is part of Libint.
 *
 *  Libint is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Libint is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Libint.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef _libint2_src_bin_libint_task_h_
#define _libint2_src_bin_libint_task_h_
 
#include <string>
#include <vector>
#include <list>
#include <map>
#include <rr.h>
#include <default_params.h>
 
namespace libint2 {
 
  class TaskExternSymbols;
 
  class LibraryTask {
  public:
    LibraryTask(const std::string& l, const SafePtr<TaskParameters>& p, const SafePtr<TaskExternSymbols>& s) :
      label_(l), params_(p), symbols_(s) {
    }
    ~LibraryTask() {
    }
    const std::string& label() const { return label_; }
    const SafePtr<TaskParameters>& params() const { return params_; }
    const SafePtr<TaskExternSymbols>& symbols() const { return symbols_; }
 
  private:
    std::string label_;
    SafePtr<TaskParameters> params_;
    SafePtr<TaskExternSymbols> symbols_;
  };
 
  class LibraryTaskManager {
    typedef std::vector<LibraryTask> Tasks;
    typedef Tasks::const_iterator tasks_citer;
 
  public:
    typedef Tasks::const_iterator TasksCIter;
    typedef Tasks::iterator TasksIter;
 
    static LibraryTaskManager& Instance();
    ~LibraryTaskManager() {}
 
    unsigned int ntask() const { return tasks_.size(); }
    TasksCIter first() const { return tasks_.begin(); }
    TasksCIter plast() const { return tasks_.end(); }
    LibraryTask& task(unsigned int i) { return tasks_.at(i); }
    void add(const std::string& task_label);
    bool exists(const std::string& task_label) const;
    TasksCIter find(const std::string& task_label) const;
    void current(const std::string& task_label);
    LibraryTask& current();
 
  private:
 
    LibraryTaskManager();
    Tasks tasks_;
    int current_;
 
    static LibraryTaskManager LTM_obj_;
  };
 
  class TaskExternSymbols {
  public:
    typedef std::list<std::string> SymbolList;
    typedef RRStack::InstanceID RRid;
    typedef std::list<RRid> RRList;
 
    TaskExternSymbols() {}
    ~TaskExternSymbols() {}
 
    void add(const SymbolList& symbols);
    const SymbolList& symbols() const;
    void add(const RRList& rrlist);
    bool find(const RRid& rrid) const;
    RRList rrlist() const;
 
  private:
    // Maintain symbols as a map since each symbol only needs to appear once
    typedef std::map<std::string,bool> Symbols;
    Symbols symbols_;
    mutable SymbolList symbollist_; // only used to return a list
 
    // Maintain RR list as a map, although RRStack already handles them that way -- hopefully this will speed up searching somewhat
    typedef std::map<RRid,bool> RRmap;
    RRmap rrmap_;
 
  };
 
};
 
#endif // header guard